White UPVC Window Sill Cover – 1.25m Long, 9mm Thick (4 Pack – 100–400mm Depth Options)

Upgrade your interior window sills quickly and affordably with this 4 Pack of White UPVC Window Sill Covers. Each board is 1.25 metres long and 9mm thick—ideal for covering worn timber or MDF sills without the need for full removal or expensive renovation work.

Made from rigid, waterproof and UV-resistant UPVC, these sill capping boards offer a clean, glossy white finish that’s easy to maintain. The 9mm thickness provides superior strength and impact resistance, while the range of depths from 100mm to 400mm ensures a perfect fit for most standard window applications.

Whether you’re renovating a home, preparing a rental property, or freshening up a bathroom or conservatory, this 4-pack set offers great coverage and value for money.

Key Features

• 4 Pack – Covers up to 5 metres in total length
• 1.25m Length x 9mm Thickness – fewer joins, strong profile
• Gloss White Finish – modern look, wipe-clean surface
• Available Depths: 100mm to 400mm
• Waterproof & UV-Stable – ideal for bathrooms, kitchens, and sunny rooms
• Easy to Fit – cut to size and fix with grab adhesive
• Low Maintenance – no painting, sanding, or sealing needed
• Compatible Accessories Available – end caps and adhesive sold separately

Suggested Uses

• Covering old or damaged interior window sills
• DIY home improvements or trade renovations
• Rental property upgrades and quick flips
• Moisture-prone areas: bathrooms, kitchens, conservatories

Technical Specifications

Installation Guide

1. Clean the existing sill to remove dust and grease
2. Cut the board to size using a fine-tooth saw
3. Dry fit and make adjustments as necessary
4. Apply strong grab adhesive to the reverse side
5. Firmly press the board into place for 60 seconds
6. Optionally, seal with white silicone for a tidy finish

Why Choose Windows4You?

Windows4You is your trusted supplier of UPVC window trims, fascia boards, and capping solutions. We deliver premium-grade products at competitive prices, with fast shipping and expert customer support from our team in the UK.